Loud bang

[sunshine 1]

I was in my trailer, when suddenly I heard a loud bang as the rear of the trailer rocked, a second after it happened again.
I can't figure out what it was. Weather wasn't bad.
Could my fresh water tank been falling down to the coroplast? I was looking under there but didn't see anything. The coroplast would not hold a tank with 50 gallon's of water right???

[RickyRobert]

Check your tire pressures and all around your tires - just in case you had a couple of blowouts!

[mlh]

I would be betting on the jacks or suspension slipped a little. Maybe something was in a bind and popped a loose not necessarily broke but just popped out of a bind.
Lynwood

[joe direnzi]

Check roof .Maybe dead branch.

[sunshine 1]

I have checked the tires and roof all is ok. Can't figure it out. Never happened before, I am just afraid something happened to my water tank.

[sunshine 1]

I hope you are right mlh.

[mlh]

Originally Posted by sunshine 1

I hope you are right mlh.

I wouldn’t be too concerned. I would go out and check every thing out. The next time I pulled it I would let someone stay in the camper to see what they hear and pull a short distance and check every thing out again. If they hear nothing go a mile or so and repeat.
Be sure to check the suspension out.
Lynwood

[prndl]

Are your rear jacks hydraulic or mechanical?
Year and model of trailer please.

[Carl n Susan]

He has a 2019 3120 and I bet it was a hydraulic jack doing its "stiction" thing.

https://lci-support-doc.s3.amazonaws...cd_0002091.pdf

[Jeff n Susan]

It certainly sounds like a hydraulic "Bang" Probably just settling with the setup.

[MARK A]

Ya, It was a hydraulic jack.



Mark

[prndl]

And that ladies and gentlemen is why I asked about his rig.
So much idle speculation on these threads with our knowing where we start.

[Carl n Susan]

Originally Posted by prndl

And that ladies and gentlemen is why I asked about his rig.
So much idle speculation on these threads with our knowing where we start.

He does have his year and model listed in his Profile. 2019 3120

[RMcNeal]

The need for anti-stiction fluid would be my first guess as well, especially since it appears to be mostly in the colder weather. However, one alternative that just recently happened to me when I stopped for the night and didn't unhook from the truck. The tires on the door side were barely off the ground and the suspension shifted. Scared the bejesus out of my wife when it happened. I recognized it right away as it has happened when I've raised the rig for maintenance. The center rocker shifts forward or back and caused a loud bang when the springs come back into position.

[ChuckS]

The hyd leveler system isn't going to make a loud bang... some pops and such but if the OP heard a loud bang then most likely what he actually heard is one or both springs as they rotated the axle to axle EQ arm shackles and banged into position...

Id have to look under the suspension on both sides and see if both sides look the same...

in seven years of use my hyd six point leveler system has never made a bang sound... pops and such yea but it isn't loud

[Montana Man]

The loudest bang I've heard is when a black tank broke. It won't necessarily come through the coroplast, just fracture in place. OP, how full are your black and grey tanks?

[jeffba]

Originally Posted by ChuckS

The hyd leveler system isn't going to make a loud bang... some pops and such but if the OP heard a loud bang then most likely what he actually heard is one or both springs as they rotated the axle to axle EQ arm shackles and banged into position...

Id have to look under the suspension on both sides and see if both sides look the same...

in seven years of use my hyd six point leveler system has never made a bang sound... pops and such yea but it isn't loud

Or is one side lifted up almost to the point of lifting the wheels?

I think Chuck is on the right track
Stiction pops, shackles bang

[sunshine 1]

Chuck is right, I have heard the poping before but this was two loud bangs.I went under and looked at the suspension,it looked alright to me, but of course I am not very mechanical inclined.
I looked over at were the black and grey tanks are located, it looked like the coroplast was bending down slightly. I can't figure out why I heard the two loud bangs from the rear of the trailer. If the black or grey tank came down on the coroplast would it be safe to drive? I am boon docking at the BLM in Why Arizona.
Thanks for all the help.

[jeffba]

Originally Posted by sunshine 1

Chuck is right, I have heard the poping before but this was two loud bangs.I went under and looked at the suspension,it looked alright to me, but of course I am not very mechanical inclined.
I looked over at were the black and grey tanks are located, it looked like the coroplast was bending down slightly. I can't figure out why I heard the two loud bangs from the rear of the trailer. If the black or grey tank came down on the coroplast would it be safe to drive? I am boon docking at the BLM in Why Arizona.
Thanks for all the help.

if the tanks are being help up by the coroplast, you will not be going far

[beeje]

Sounds to me that the suspension was hanging just enough to invert the center equalizer/shackle. Look and compare the orientation of the center equalizer/shackle from side to side. Do they look the same ?